Alfred edwin stove



A. STOVE.

HOSE COUPLING.

APPLICATION FILED JUNE 2. 1919.

Patented Nov, 25, 1919.

UNTTED sTATEs PATENT oFnioE.

ALFRED EDWIN sTovE, or LoNDoN, ENGLAND.

HosE-coUPLING.

Specification of Letters Patent.

. Patented Nov.V 25, 19191.

Application led June 2, 1919. Serial No. 301,223.

To all whom it may concern Be it known that I, ALFRED EDWIN vS'rovn, a subject of the King of Great Britain, residing at London, England, have invented certain new and useful Improvements Connected with Hose-Couplings, of which the following is a specieation. Y

This invent-ion relates to that class ofhose couplings in which a washer of U-shaped cross-sectionis employ/'ed to prevent leakage at the joints and particularly to that class which are knownvas interchangeable hose couplings and in which thelockingparts are the same at both ends 'of the hosepipe and revolve around the other parts leaving the sleeves to which the hose pipes are secured free to revolve.

The object of my invention is to improve the construct-ion of hose couplin s in such a manner that they are more e 'cient and have fewer parts and cannot leak or blow out under any pressure and since the parts are devoid of screw threads on the parts they are more readily assembled in manufacture and are less liable to damage in use. Further all loose parts are free to revolve, thus allowing the hose to straighten itself;

I show in the drawing the improvements as applied to the type of interchangeable coupling having inclined planes and claws or catches for holding the two parts together. Y

lith reference to the annexed drawings- Figure l is a longitudinal section of the half coupling.

Fig. 2 a plan view of the half coupling.

It is understood that with the construction both half couplings are alike.

A, A are claws, or catches projecting from a ring B and engaging the corresponding ring of a complemental half coupling and C is the sleeve rotatable in the ring B as is well known.

Now my invention consists of an improved form of joint between the ring B and sleeve C and comprises an improved type of washer ring D in conjunction with a Llshaped washer E which prevents all liquid or liuid passing the joints between the ring B and sleeve C. The improved washer ring D is of U shape in cross-section having a depending web F on its under side, a depending flange G adjacent its outer edge and tongues I-I on its periphery, one of the walls being preferably turned inward as at I to engage a flange of a flat front washer J to holdy suchy washer in thedepression of the U shaped ring D, the ring D AViitting within the ring B and surrounding the sleeve C and seated against .shoulders formed within the ring 'B vand upon the sleeve C. j N' The functions of the ring'D yare '(1) to provide a holder for the flat frontV washer J "(2) to direct thefflow of liquid or fluid to the 'lower washer E by means of the web F, which-assists in maintaining a watertight joint by ldividing the water in the washer E and4 also assists in `helping the 'washer to maintain its proper shape yand (3) toiprovide improved means of securing all the parts in place, such means consisting of the projecting tongues Il engaging in a groove K cut in the ring B. Slots L are formed in the ring B and communicate with the groove K to permit of the passage of the tongues Il of the washer ring D when inserted in the ring B. When inserted in the ring B, the washer ring D is partially located so that the projecting tongues II enter the groove K* and after such insertion small set pins M in the ring B engage and secure the washer ring D in place thus preventing the tongues H from again reaching the slots L, but permitting the washer ring D to move through part of the distance, thusallowing the iiat washers J of the abutting couplings to adjust themselves to one another when coupled up. It will be seen that sleeve C is free to revolve at all times.

The joint is completed by the rubber or leather washer E, also U'-shaped in crosssection, which is so located that liquid escaping past the ring D is directed into the recess or depression in the washer E, therebyV compressing and expanding said washer between the interior ofthe ring B and the eX- terior of the sleeve C andy preventing any escape of liquid between the ring B and sleeve C. l Y

l/Vhat I do claimas my invention and desire to secure by Letters Patent, isz- 1. A joint for hose couplings, comprising a ring having a depression in oneV of its faces and a web projecting from its opposite face and also having tongues extending from its periphery; a washer seated in said depression; a coupling ring carrying means for engaging a complemental coupling member and having an internal groove to receive the tongues of said lirst-named ring and also having slots in one of its faces cominunicating with said groove to permit of the insertion and removal of said tongues; means carried by one of said rings and engaging the other to limit the relative rotation thereof; a. second washer having a depression in one of its faces to receive the web of said first-named ring; and a sleeve having one end projecting within said rings and said second named washer and provided with shoulders engaging said rings and washer.

2. A joint for hose couplings, comprising a sleeve provided with an external iange and a pair of external shoulders between said flange and one of its ends; a coupling ring surrounding the shouldered end of said sleeve having an internal groove and slots in one of its faces communicating with said groove, an internal flange engaging the flange on the sleeve, and a pair of internal shoulders, and provided with means to engage a complemental coupling ring; a washer between said coupling ring and said sleeve having a depression and resting on one of the external shoulders of said sleeve and one of the internal shoulders of said ring; a second ring between said rst-narned ring and said sleeve, resting on one of the shoulders of said ring and one of the shoul- A ders of said sleeve, having a depression in one of its faces and a web and a flange projectingy from its other Jface adapted, respectively, to enter the depression in said washer and to surround said washer; and provided on its periphery with tongues for insertion through the slots in the first-named `ring into the groove of the latter; and a washer in the depression in said last-named ring.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

ALFRED nnwni sfr'ovn Witnesses:

FRED E. HUTCHINS,

WM. O. BROWN. 

